All In One Electric StrikeRutherford make a great strike. It`s among the most versatile and very heavy duty. It will mount in a wood or aluminum frame. The keeper or lip area is center mounted and also enlarged to accommodate just about any latch with up to a 3/4' projection and since the lip is so wide, installation is easier. In addition there are two different monitor outputs-Latch Monitor and Keeper Monitor. The latch monitor can tell you that a latch has entered the strike and the keeper monitor can tell you if the strikes keeper is in the locked or unlocked position. Not everyone needs this type of feedback but if you want this its included.